Triethylamine → 6-(4-Isocyanatophenoxy)-hexanoic acid methyl ester

HRID 83790

반응식

HRID 83790 반응식
[CH3:1][O:2][C:3](=[O:17])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][O:9][C:10]1[CH:15]=[CH:14][C:13]([NH2:16])=[CH:12][CH:11]=1.C(N(CC)CC)C.Cl[C:26](Cl)([O:28]C(=O)OC(Cl)(Cl)Cl)Cl>C1(C)C=CC=CC=1>[CH3:1][O:2][C:3](=[O:17])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][O:9][C:10]1[CH:15]=[CH:14][C:13]([N:16]=[C:26]=[O:28])=[CH:12][CH:11]=1

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 94429TriphosgeneHCID 146502966-(4-Aminophenoxy)-hexanoic acid methyl ester

생성물 1

HCID 497644906-(4-Isocyanatophenoxy)-hexanoic acid methyl ester수율 72.3%

시약·촉매·용매 1

HCID 1140Toluene용매

반응 조건

온도
75 °C

실험 절차

To 6-(4-aminophenoxy)-hexanoic acid methyl ester 17 (26 g, 109.7 mmol) and tri-ethylamine (29.2 g, 288.56 mmol) in toluene (390 ml) under nitrogen atmosphere was added triphosgene (15.6 g, 52.56 mmol) in one lot. The reaction was exothermic and internal temperature rose to 60° C. Later the reaction mixture was heated to 75° C. over a period of one hour and maintained at this temperature for 26 hours. The reaction mixture was cooled to room temperature, the solids filtered off, and toluene distilled off under vacuum to get crude 18, which was vacuum distilled to get pure 18 (10 g, 34.7%) with an m.p between 47-50° C.

후처리

  1. customrose to 60° C
  2. temperaturemaintained at this temperature for 26 hours
  3. temperatureThe reaction mixture was cooled to room temperature
  4. filtrationthe solids filtered off
  5. distillationtoluene distilled off under vacuum
  6. customto get crude 18, which
  7. distillationdistilled

출처 및 근거

ORD 기록
ord-b4ad449412b74f6cb1a18470ab4fbd76
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08846845B2

연결된 노트

불러오는 중…